Question

Case Study: Attempt any four sub parts out of five.
A telephone directory, commonly called a telephone book, telephone address book, phone book or the
white pages, is a listing of telephone subscribers in a geographical area. Rahul is a student of Classs IX ha
an telephone directory. On one page of a telephone directory, there are 150 phone numbers. The frequeno
distribution of their units digit is given below:
Unit digit
Frequency
0
10
20
1 5
1 0
2 0
Cova un AwNH
rol
1 5
1 5
9​

Answer 1

Answer:

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सफल इंसान वही है,

जिसे टूटे को बनाना और रूठे को

मनाना आता है .

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